rob v Posted March 13, 2009 Report Share Posted March 13, 2009 I recently bought an older honda outboard - but it didn't come with fuel line or fuel line couplers. I couldn't locate an after market product made specifically for this motor (honda) so I bought a model (female coupler that hooks to the motor) that says its made for Johnson/Evinrude. It seems to fit and doesn't leak. I've gotten the motor to run but it's not running well and I'm trying to eliminate possible problems. I'm sure I've got some carb adjustments to make also. Can the wrong fuel coupler make a difference to the operation of an outboard ?? I know there's people on this board with a lot of outboard experience and any input would be appreciated. Thx. Link to comment Share on other sites More sharing options...
BITEME Posted March 13, 2009 Report Share Posted March 13, 2009 quick answer no keep plugging away go to a honda dealership and buy the manual you wont regret it probably around $90.00 worth its weight in gold Link to comment Share on other sites More sharing options...
Fisherman Posted March 13, 2009 Report Share Posted March 13, 2009 Well I'm not 100% sure, but if the coupler doesn't seal then you may be sucking a bit of air, I'm in the same boat, picked up an older Honda 8, have to get the fuel coupler for the motor end and a new tank coupler fitting. Link to comment Share on other sites More sharing options...
OhioFisherman Posted March 13, 2009 Report Share Posted March 13, 2009 I don`t know what a honda coupler looks like but try fitting a merc one to an older Johnson-evinrude, it ain`t going to happen! Not sure, maybe hondas use metric measurements? It might be sucking air? Link to comment Share on other sites More sharing options...
Sinker Posted March 13, 2009 Report Share Posted March 13, 2009 It should work if its not leaking. I'd say your carb is gummed up. If its running, try running some seafoam thru it. Its available at most NAPA auto parts stores. Sinker Link to comment Share on other sites More sharing options...
BITEME Posted March 13, 2009 Report Share Posted March 13, 2009 If you are looking for air leaks an unlit propane torch works great direct the gas at the questionable area and if it leaks the engine will speed up a little from the propane mark the spot and move on after you have covered everthing go back and reseal and try again. Link to comment Share on other sites More sharing options...
rob v Posted March 13, 2009 Author Report Share Posted March 13, 2009 Thanks for the info. I don't think it's sucking any air - the bulb pumps up and stays firm - and I don't see any fuel leakage. That unlit propane torch is a new one - I'm not sure I,m real comfortable with that idea - but it sounds like a good one. I think the next step is the seafoam idea. I had planned on doing something like that eventually. thx. Link to comment Share on other sites More sharing options...
2 tone z71 Posted March 13, 2009 Report Share Posted March 13, 2009 (edited) Rob take the time and remove @ disassembly the carb properly ,remove the float bowl and all the components and let them soak in a carb cleaner ,Omc Engine tuner works magic overnight ,if the fitting fits on the motor and ya prime the bulb and it fills the carb and theres no leaks its fine Edited March 13, 2009 by North East Shark Link to comment Share on other sites More sharing options...
rob v Posted March 13, 2009 Author Report Share Posted March 13, 2009 OMC engine tuner - besides a specialty marine store - can you buy this stuff anywhere else ? Link to comment Share on other sites More sharing options...
2 tone z71 Posted March 13, 2009 Report Share Posted March 13, 2009 OMC engine tuner - besides a specialty marine store - can you buy this stuff anywhere else ? unfortunatly its gotta be a dealer,but overnight this stuff will take the gunk out of anything and turn the varnished parts to a nice brass finish again,there are others available but I will not use anything else Link to comment Share on other sites More sharing options...
NANUK Posted March 14, 2009 Report Share Posted March 14, 2009 There is a little ball inside the coupler which gets depressed and allows the flow when you connect to the motor, it stops the gas from coming out of hose when you disconnect, maybe and just maybe its not getting fully depressed because its not the right part for your motor, just a guess. I would try to get the proper coupler for that motor before getting in to more complicated stuff like dis-assembling and tinkering with carbs, replacing gaskets etc. Link to comment Share on other sites More sharing options...
SlowPoke Posted March 14, 2009 Report Share Posted March 14, 2009 Hi Rob, I have a Honda BF8 with tank/hoses etc. You're welcome to drop by and give it a run off my tank. Mine was running a little rough and hard starting but a little carb tweaking did the job. I'm sure mine could use a good carb cleaning as well! South London... Bradley/Millabnk area Link to comment Share on other sites More sharing options...
boatman Posted March 14, 2009 Report Share Posted March 14, 2009 What size hp are we talking about? If the inside diameter of the OMC style fitting is smaller than the Honda then it could be restricting fuel flow. However, I doubt that is the case. I'd bet its something else. I've replaced Mercury fuel connectors with OMC style and they work fine (and are better and easier to find). I use spray oil like WD-40 instead of propane. You can buy seafoam at NAPA. That's the only place I've found it. What problems are you experiencing? Its hard to help without knowing what's going on. Link to comment Share on other sites More sharing options...
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